• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

8700K OcUK Stock and Binned Processors

Fanaticjam

Fanaticjam

Fanaticjam

Associate
Joined
25 Sep 2011
Posts
510
BTVA said:
I got a random retail one L729 which does 5.2Ghz 1.404v cb15. Pretty average so I'm happy at least I'm not losing to the SL. :D
Click to expand...

What tempts you hitting on prime at that? and have you delidded?

BTVA said:
In the first 30 ocuk had, only around 3 cpus didn't make it 5Ghz stable. IIRC, 14-17 did 5Ghz, 6-8 did 5.1Ghz, 1-2 did 5.2Ghz.
Click to expand...

They delidded them all though I thought?

I'm running mine at 5.1ghz but I have HT off
 

rwilko78

rwilko78

rwilko78

Associate
Joined
20 Dec 2014
Posts
8
jasonsony735 said:
Is everyone happy with there i7 8700k ?
Click to expand...

I'm happy so far, only built the system at the weekend so I'm still tweaking to optimise, was running a 6700k at 4.7ghz before. So far I'm running the 8700k at 5ghz at 1.296v set in the Bios however under stress testing cpu-z show this increasing to 1.312v. I've got one of the OCUK delidded chips so temps are good, stress testing the CPU in Aida64 I'm seeing high 50 Celsius, a couple of cores tip over into 61 - 62c. FPU stress test pushes this to high 60's, with a few cores going slightly over 70c. This is under a corsair H100iv2 AIO.

CinebenchR15 scores at 1635 and Firestrike at 35111, with 2 Titan X (Pascal) in SLI. My 6700k at 4.7 managed 1020 in CinebenchR15

I haven't had chance to benchmark much in games but quickly tested a couple. Initial results suggest that at 1440p with "Ultra" settings there isn't much difference, probably as the stress is more on the GPU.
Rise of the Tomb Raider at 1440p in SLI, Dx11, fullscreen, SSAAx4, HBAO+, Vsync off (Gsync on 144hz monitor), motion blur off, all other setting maxed
  • 8700K (5ghz) : Average: 99.09, Mountain Pass: Average 118.57, Min 68.26, Max 176.83. Syria: Average 84.79, Min 41.51, Max 111.09. Geothermal Valley: Average 91.55, Min 43.70, Max 147.53
  • 6700K (4.7ghz): Average: 92.13, Mountain Pass: Average 114.69, Min 57.54, Max 167.20. Syria: Average 76.22, Min 33.30, Max 105.88. Geothermal Valley: Average 82.84, Min 49.44, Max 137.16
F1 2017 at 1440p, single GPU mode, fullscreen, Vsync off (Gsync on 144hz monitor), all settings maxed, benchmark mode: Australia, clear weather, 1 Lap:
  • 8700K (5ghz) : Average: 118, Min 100, Max 143
  • 6700K (4.7ghz): Average: 118, Min 100, Max 143
I thought I'd test F1 2017 again but at 1080p to reduce the GPU overhead and push the load onto the CPU; single GPU mode, fullscreen, Vsync off, Gsync off, AA off, AF 16x, High preset, benchmark mode: Australia, clear weather, 1 Lap:
  • 8700K (5ghz) : Average: 273, Min 211, Max 327
  • 6700K (4.7ghz): Average: 259, Min 208, Max 314
So I'd say that despite increased synthetic benchmarks, the performance increase doesn't translate into real world gaming results above 1080p unless the title is optimised for more than 4 cores. I don't own any titles that are optimised for additional cores but from other reviews I've seen online the 8700K stretches slightly further out than the 4-cores in these. Although I primarily game I do some video editing so the 6 cores should help with this, hence the reason I opted for the 8700k as I still wanted maximum performance in games
 

Fanaticjam

Fanaticjam

Fanaticjam

Associate
Joined
25 Sep 2011
Posts
510
BTVA said:
They only delid the ones that make the bin. Rejected bins will be used in ready built pc.
Click to expand...

Are you saying they delid after hitting the mark for being binned? I would have assumed they delidded them all first. which is why I mentioned it in regards to being easy to hit 5ghz
 

BTVA

BTVA

BTVA

Associate
Joined
12 Jan 2017
Posts
406
Fanaticjam said:
Are you saying they delid after hitting the mark for being binned? I would have assumed they delidded them all first. which is why I mentioned it in regards to being easy to hit 5ghz
Click to expand...

yes, there is no point deliding them all as you will risk delid also the bad ones. Mine is not even delided yet, I have not tested anything else apart from cb15. anything 5Ghz or higher requires delid to stable 24/7. Mine hitting 86*C on cb15
 

8 Pack

8 Pack

8 Pack

OcUK Staff
Joined
20 Feb 2012
Posts
10,176
Location
John Smiths Stadium
Fanaticjam said:
Are you saying they delid after hitting the mark for being binned? I would have assumed they delidded them all first. which is why I mentioned it in regards to being easy to hit 5ghz
Click to expand...
We bin then delid.... Then retest the delid....
All 5ghz for example 1.35V 5.1 R15 before delid...

My best cpu 1.32V 5.4ghz r15 before delid ;)
 
You must log in or register to reply here.
Back
Top Bottom